Sodium/calcium exchanger 1 (SLC8A1), partial, human, recombinant

Organism: Homo sapiens (Human). Source: Yeast. Expression Region: 396-627aa. Protein Length: Partial. Tag Info: N-terminal 6xHis-tagged. Target Protein Sequence: VNTEVTENDP VSKIFFEQGT YQCLENCGTV ALTIIRRGGD LTNTVFVDFR TEDGTANAGS DYEFTEGTVV FKPGDTQKEI RVGIIDDDIF EEDENFLVHL SNVKVSSEAS EDGILEANHV STLACLGSPS TATVTIFDDD HAGIFTFEEP VTHVSESIGI MEVKVLRTSG ARGNVIVPYK TIEGTARGGG EDFEDTCGEL EFQNDEIVKT ISVKVIDDEE YEKNKTFFLE IG. Purity: Greater than 90% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. Form: Liquid or Lyophilized powder. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 °C for up to one week. Relevance: Mediates the exchange of one Ca2+ ion against three to four Na+ ions across the cell membrane, and thereby contributes to the regulation of cytoplasmic Ca2+ levels and Ca2+-dependent cellular processes (PubMed:1374913, PubMed:11241183, PubMed:1476165). Contributes to Ca2+ transport during excitation-contraction coupling in muscle. In a first phase, voltage-gated channels mediate the rapid increase of cytoplasmic Ca2+ levels due to release of Ca2+ stores from the endoplasmic reticulum. SLC8A1 mediates the export of Ca2+ from the cell during the next phase, so that cytoplasmic Ca2+ levels rapidly return to baseline. Required for normal embryonic heart development and the onset of heart contractions. Reference: "The SLC8 gene family of sodium-calcium exchangers (NCX) - structure, function, and regulation in health and disease." Khananshvili D. Mol. Aspects Med. 34:220-235(2013). Function: Mediates the exchange of one Ca(2+) ion against three to four Na(+) ions across the cell membrane, and thereby contributes to the regulation of cytoplasmic Ca(2+) levels and Ca(2+)-dependent cellular processes